A new application called UpDownTool allows users to revert from Windows 11 to Windows 10 without losing programs, files, drivers, or settings. Many users are dissatisfied with Windows 11 due to sluggish performance, a less intuitive interface, increased system requirements, and the removal of familiar features. Microsoft has limited options for downgrading, typically allowing a 10-day rollback period or requiring a clean install. UpDownTool simplifies the process by enabling users to transition to Windows 10 LTSC 2021 while preserving core data and configurations. Windows 10 LTSC 2021 is designed for long-term deployment and receives extended updates, with support for the IoT Enterprise LTSC 2021 edition lasting until January 2032. The LTSC edition does not include preinstalled applications like the Microsoft Store and Cortana, making it appealing for users seeking a minimalist experience. UpDownTool can also repair existing Windows 10 LTSC installations or convert other editions to LTSC. Users must be cautious of licensing implications, as LTSC licenses are typically not available through consumer channels. The downgrade process involves downloading the installer and executing a batch script, with the system booting into Windows 10 LTSC 2021 upon completion. Users are advised to back up important files before proceeding.